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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.8
// The server command demonstrates a server with HTTP/2 Server Push support.
package main
import (
"flag"
"fmt"
"log"
"net/http"
)
var httpAddr = flag.String("http", ":8080", "Listen address")
func main() {
flag.Parse()
http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static"))))
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
pusher, ok := w.(http.Pusher)
if ok {
// Push is supported. Try pushing rather than
// waiting for the browser request these static assets.
if err := pusher.Push("/static/app.js", nil); err != nil {
log.Printf("Failed to push: %v", err)
}
if err := pusher.Push("/static/style.css", nil); err != nil {
log.Printf("Failed to push: %v", err)
}
}
fmt.Fprintf(w, indexHTML)
})
log.Fatal(http.ListenAndServeTLS(*httpAddr, "cert.pem", "key.pem", nil))
}
const indexHTML = `<html>
<head>
<title>Hello World</title>
<script src="/static/app.js"></script>
<link rel="stylesheet" href="/static/style.css"">
</head>
<body>
Hello, gopher!
</body>
</html>
`
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